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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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[quote user="jessie.dazzle"]The Velodyne SMS 1 will allow you to do just about anything, up to 200Hz. [/quote]I was the Velodyne crossover into the game yesterday. To my surprise it not as convenient as I thought. The high pass filter is not defeatab...
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[quote user="jessie.dazzle"]I have not yet measured either case. As previously mentioned, at mid-project I had to put the mid-bass horns on standby (I will get back to them, but must first attend to an ongoing emergency).I can measure the free air re...
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[quote user="jessie.dazzle"]When doing the final assembly, you might want to use Nylock type self-locking nuts:http://www.nylocknut.com/Looking at the images, this might require that you use slightly longer bolts (the few threads exposed beyond the e...
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[quote user="jessie.dazzle"] First question:
With the 1.5 gallon rear chamber, the resonance is 700Hz With the basket sealed by tape (very small rear chamber), the resonance is 49Hz Assuming there was not a typographical error, from this we...
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[quote user="jessie.dazzle"]From this and from the mention of 3/4" plywood, I deduce that the "curved" walls of these horns will likely be described by a series of facets (flat planes). It is said to be okay at these frequencies; this must assume a p...
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[quote user="jessie.dazzle"]What makes audio different than other realms open to criticism? Here are some thoughts ....[/quote]What is the wonderful summation of the main plot of this thread!
The audio people are super sensitive to criticism only wh...
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[quote user="jessie.dazzle"]Incidentally, a little motivational experiment was recently made possible; with half a horn complete and laying flat, the missing half substituted by the floor, I had my "assistant" (who has quite a low voice for a female)...
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[quote user="jessie.dazzle"]Those considering a USB DAC may want ....[/quote]Before I wrote the post that Jessie reefed I consulted with a few quite knowledgeable people in the digital field who explained to me all aspect of USB DACs. From what I und...
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[quote user="jessie.dazzle"] One did; in reviewing the L2 preamp, John Atkinson (Stereophile) wrote:"...The absolute polarity was preserved from both sets of outputs with the front-panel switch set to "0 degrees," confirming that the XLR jacks ar...
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[quote user="jessie.dazzle"]But about the Wilson video: At the risk of deviating into an area outside the intent of this site, I'm prompted to ask, what the hell is up with this style of presenting? It's really become a cliché... The "sincere" fixed...
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[quote user="jessie.dazzle"] Memo to Silbatone: Associating yourselves with a person who expresses himself in this way will undermine your hard work and any credibility your products might deserve.[/quote] I kind of thought this way initially but the...
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[quote user="jessie.dazzle"]Here's what's behind my comment regarding the irrelevance of color: I strongly suspect that the new production diaphragms will come with transparent Mylar suspension. In that case, I would hope they turn out to have the me...
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[quote user="Paul S"]You might also want to try stiffened felt, which seemed to work "as well" as the paper for me, and it is easier to form. Just saturate the pre-shaped felt with runny "paste", whether gluten/starch or methyl cellulose, milk glue...
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[quote user="jessie.dazzle"]Is this because of the way you are driving them?When testing my one completed mid-bass horn (AK151 into 40Hz Exponential with 8" throat), and powering it from an amp that drives everything from upper bass to HF, the output...
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[quote user="jessie.dazzle"]I realize this is off topic, but I would like to address the issue:Rackish wrote: "...Recently I asked someone who contributes regularly on your forum and has a system 'similar' to yours to come and listen to his system....
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[quote user="jessie.dazzle"] In my case, the CD transport (which is no slouch) is soundly beaten. Apart from using it to make the occasional comparison, I have not touched the CD transport since unpacking the DAC.[/quote]
Jessie, I see an inconsiste...
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[quote user="jessie.dazzle"]Why no amount of watts will compensate for direct-radiation :Start with the obvious : When compared to either multiple direct-radiating drivers or a single horn-loaded driver, to achieve the same SPL, a single direct-radia...
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[quote user="jessie.dazzle"] 4) Extend the free end of the string through the center of each of the above-mentioned horns, and mark the point on the string corresponding to the location of the membrane (where it would be located had the driver not be...
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[quote user="jessie.dazzle"] To that I would only add the following: Start saving up now for a second pair of S2s.[/quote]
Yes and no. I used the second S2 for lower MF range but it is not only way to go. I would propose that any driver with large a...
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[quote user="jessie.dazzle"]I would think they might also compete with the mid-bass horns. The Auras can run up to 80, maybe 90Hz (you're probably going to say "60Hz max!!!"); would you really need to use the line arrays in the presence of a pair...
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[quote user="jessie.dazzle"] A technical understanding is necessary and I am always trying to learn more... [/quote]Jessie, you might at this point have worries/interests about technicalities of horns operation or a desire to find theoretical justifi...
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[quote user="jessie.dazzle"] I have not heard any other systems using Vitavox S2 drivers, but I know it is possible to get the S2 to generate on-axis unpleasentries. In the case of the system I am building, one can happily sit straight in the firing ...
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[quote user="jessie.dazzle"] I now feel a sort of responsibility toward other S2 … and still no cringing.[/quote]
Well, I lost that responsibility long time ago. There are 6 external factors that besides everything affect the “cringing” of S2:...
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[quote user="jessie.dazzle"]Control everything from anywhere in the house : The newest version of the Mac OS (sorry!) gives you complete wireless remote control over a second Mac, allowing you to see the screen of the other computer, and execute ALL ...
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[quote user="jessie.dazzle"]I should mention that with all the wonderful things it does, the L2 (preamp) definitely deserves a fresh pair of 12AX3s and a 6C19P. (I have not changed them since starting work on the horns... all tubes are exactly one ye...
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[quote user="jessie.dazzle"]Have you considered replacing the cover on the tail of your Upper-Bass horn? ...With a large-diameter circular cover, made from a more resonant material (when I say large diameter, I mean quite a bit larger than the diamet...
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>
jessie.dazzle : > My
opinion : Just as in the world of good black and white film, once
strapped into your listening seat, your brain most appreciates a system
capable of naturally rendering relative contrastI don't agree. B...
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[quote user="jessie.dazzle"]Since I speak French, and since I deal with plagiarism everyday, and since NOTHING pisses me off more, I phoned Phil Mundi to ask him about the unothorized use of your artwork on his site, and if this act was representativ...
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[quote user="jessie.dazzle"] I bought the ML2s to use as a development/reference tool while constructing this horn system. The idea being that I would first use them to dial in the horns, and later as a reference, to which I would compare and evolve ...
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[quote user="jessie.dazzle"]7) Location of power amps : Yes, the power amps sit within the frame, on their own sliding support between the Upper-Bass and Upper-Mid horns. For the moment I am using a pair of ML2s from 60Hz and above. (below 60Hz I use...
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